Fixed TestFileExistsLocally tests in common/config_test.go so that they're actually being run. Added a non-existent-protocol:// test.
Fixed TestFileExistsLocally tests in common/config_test.go so that they're actually being run. Added a non-existent-protocol:// test.

p1-nico/packer,ChrisLundquist/packer,pieter-lazzaro/packer,paulmey/packer,ricardclau/packer,pecigonzalo/packer,ChrisLundquist/packer,pieter-lazzaro/packer,mitchellh/packer,KohlsTechnology/packer,tas50/packer,timsutton/packer,tas50/packer,routelastresort/packer,grubernaut/packer,bryson/packer,youhong316/packer,rnaveiras/packer,p1-nico/packer,hashicorp/packer,dave2/packer,dave2/packer,pieter-lazzaro/packer,grubernaut/packer,rnaveiras/packer,ChrisLundquist/packer,bryson/packer,hashicorp/packer,routelastresort/packer,pieter-lazzaro/packer,p1-nico/packer,dave2/packer,tb3088/packer,mkuzmin/packer,pecigonzalo/packer,grubernaut/packer,bryson/packer,ricardclau/packer,timsutton/packer,KohlsTechnology/packer,paulmey/packer,routelastresort/packer,mitchellh/packer,dave2/packer,mkuzmin/packer,ricardclau/packer,mkuzmin/packer,tb3088/packer,hashicorp/packer,paulmey/packer,youhong316/packer,mkuzmin/packer,mkuzmin/packer,tas50/packer,tas50/packer,paulmey/packer,pecigonzalo/packer,ChrisLundquist/packer,hashicorp/packer,timsutton/packer,routelastresort/packer,ChrisLundquist/packer,youhong316/packer,pecigonzalo/packer,paulmey/packer,grubernaut/packer,p1-nico/packer,mitchellh/packer,pieter-lazzaro/packer,bryson/packer,grubernaut/packer,youhong316/packer,tb3088/packer,p1-nico/packer,KohlsTechnology/packer,youhong316/packer,routelastresort/packer,rnaveiras/packer,KohlsTechnology/packer,ricardclau/packer,ChrisLundquist/packer,tb3088/packer,tas50/packer,bryson/packer,bryson/packer,ricardclau/packer,p1-nico/packer,timsutton/packer,KohlsTechnology/packer,ricardclau/packer,timsutton/packer,rnaveiras/packer,grubernaut/packer,pieter-lazzaro/packer,tb3088/packer,youhong316/packer,mitchellh/packer,tas50/packer,KohlsTechnology/packer,mitchellh/packer,timsutton/packer,dave2/packer,dave2/packer,paulmey/packer,rnaveiras/packer,rnaveiras/packer,mkuzmin/packer,tb3088/packer